nope.
For example, Halo is and will be only X_box game.
Don't you see that (in Europe) the released games for PC are very few these months ? i mean, very few PC title are new for sale; i think this is because Micro$oft is releasing his console, and wanted to sell it to PC owner. In that way, a lot of x_box games come out, to give PC user the wanting to buy this crappy console.